Red gems

Red gems provide the following bonuses (updated for 4.0.1):

The Burning Crusade

This section concerns content related to The Burning Crusade.

The following gems are cut into red socket gems:

Gem	Effects	Source
Red, match red sockets.
[Delicate Tourmaline]	+1 Agility	Vendor
[Delicate Blood Garnet]	+1 Agility	Consortium
[Delicate Blood Garnet]	+2 Agility	Battlecryer Blackeye Warrant Officer Tracy Proudwell
[Delicate Living Ruby]	+2 Agility	World drop
[Delicate Ornate Ruby]	+3 Agility	Lady Palanseer Captain O'Neal
[Delicate Crimson Spinel]	+3 Agility	Scale of the Sands Shattered Sun Offensive
[Crimson Sun]	+3 Agility	Consortium
[Brilliant Tourmaline]	+1 Intellect	Vendor
[Brilliant Blood Garnet]	+1 Intellect	Scryers
[Brilliant Blood Garnet]	+7 Intellect	Battlecryer Blackeye Warrant Officer Tracy Proudwell
[Brilliant Living Ruby]	+2 Intellect	World drop Kael'thas Sunstrider
[Brilliant Ornate Ruby]	+3 Intellect	Lady Palanseer Captain O'Neal
[Brilliant Crimson Spinel]	+3 Intellect	Scale of the Sands Shattered Sun Offensive
[Don Julio's Heart]	+3 Intellect	Consortium
[Kailee's Rose]	+3 Intellect	The Sha'tar
[Flashing Living Ruby]	+2 Parry	World drop
[Flashing Crimson Spinel]	+3 Parry	Scale of the Sands Shattered Sun Offensive
[Bold Tourmaline]	+1 Strength	Vendor
[Bold Blood Garnet]	+1 Strength	Trainer
[Bold Living Ruby]	+2 Strength	World drop
[Don Amancio's Heart]	+2 Strength	Halaa
[Don Rodrigo's Heart]	+2 Strength	Halaa
[Bold Crimson Spinel]	+3 Strength	Scale of the Sands Shattered Sun Offensive

This section concerns content related to Wrath of the Lich King.

The following gems are cut into red socket gems:

Gem	Effects	Source
Red, match red sockets.
[Delicate Bloodstone]	+12 Agility	Trainer
[Perfect Delicate Bloodstone]	+14 Agility	[Gem Perfection]
[Delicate Scarlet Ruby]	+16 Agility	Tiffany Cartier
[Delicate Stormjewel]	+20 Agility	Bag of Fishing Treasures
[Delicate Cardinal Ruby]	+20 Agility	Timothy Jones
[Precise Bloodstone]	+12 Expertise Rating	Trainer
[Perfect Precise Bloodstone]	+14 Expertise Rating	[Gem Perfection]
[Precise Scarlet Ruby]	+16 Expertise Rating	Herald Volazj
[Precise Cardinal Ruby]	+20 Expertise Rating	Timothy Jones
[Brilliant Bloodstone]	+12 Intellect	Trainer
[Perfect Brilliant Bloodstone]	+14 Intellect	[Gem Perfection]
[Brilliant Scarlet Ruby]	+16 Intellect	Archmage Alvareaux
[Brilliant Stormjewel]	+20 Intellect	Bag of Fishing Treasures
[Brilliant Cardinal Ruby]	+20 Intellect	Timothy Jones
[Flashing Bloodstone]	+12 Parry Rating	Trainer
[Perfect Flashing Bloodstone]	+14 Parry Rating	[Gem Perfection]
[Flashing Scarlet Ruby]	+16 Parry Rating	Tiffany Cartier
[Flashing Cardinal Ruby]	+20 Parry Rating	Timothy Jones
[Bold Bloodstone]	+12 Strength	Trainer
[Perfect Bold Bloodstone]	+14 Strength	[Gem Perfection]
[Bold Scarlet Ruby]	+16 Strength	Tiffany Cartier
[Bold Stormjewel]	+20 Strength	Bag of Fishing Treasures
[Bold Cardinal Ruby]	+20 Strength	Timothy Jones

This section concerns content related to Cataclysm.

The following gems are cut into red socket gems:

Gem	Effects	Source	Cost
Red, match Red sockets.
[Delicate Carnelian]	+30 Agility	Jewelcrafting trainer	Gold
[Perfect Delicate Carnelian]	+35 Agility	[Gem Perfection]	Quest
[Delicate Inferno Ruby]	+40 Agility	Isabel Jones or Marith Lazuria	3
[Brilliant Carnelian]	+30 Intellect	Jewelcrafting trainer	Gold
[Perfect Brilliant Carnelian]	+35 Intellect	[Gem Perfection]	Quest
[Brilliant Inferno Ruby]	+40 Intellect	Isabel Jones or Marith Lazuria	3
[Bold Carnelian]	+30 Strength	Jewelcrafting trainer	Gold
[Perfect Bold Carnelian]	+35 Strength	[Gem Perfection]	Quest
[Bold Inferno Ruby]	+40 Strength	Isabel Jones or Marith Lazuria	3
[Precise Carnelian]	+30 Expertise Rating	Jewelcrafting trainer	Gold
[Perfect Precise Carnelian]	+35 Expertise Rating	[Gem Perfection]	Quest
[Precise Inferno Ruby]	+40 Expertise Rating	Isabel Jones or Marith Lazuria	3
[Flashing Carnelian]	+30 Parry Rating	World Drop
[Perfect Flashing Carnelian]	+35 Parry Rating	[Gem Perfection]	Quest
[Flashing Inferno Ruby]	+40 Parry Rating	Isabel Jones or Marith Lazuria	3